Improvement in



UNITED STATES PATENT OFFICE.

DANIEL NEVTON, OF SOUTHINGTON, CONNECYTICIIT.

.l IMPROVEMENT 'IN- METAL-FOLDING MACHINES.

Specification forming part of Leiters Patent No. 12,282, dated January Q3, 1855.

firmly held to the metal on which the fol'd is to be turned, also the gages attached to the plate by which the width of the fold is regu- Y lated.

To enable others skilledin the art to make and use my invention, I will proceed to dcscribe its construction and operation. y

I construct my folder of any suitable size and length according to the work it is designed -to do. The most common length 4is about twentynine or thirty inches.

The movable part of the body of the machine is represented at Figure 9. It is a piece of cast-iron about thirty inches long and one inch and tlneefourths square, with one side shown at Fig. 7, and is a straight piece of eastiron about one and one-fourth inch thick, one and one-half deep, with the upper front corner beveled off, and a projection down at each end on the under side for the convenience of bolting it to the end pieces. In the hollow of Fig. 9 is fastened three or more steel fingers about one inch wide and one-fourth thick, beveled about one inch in length, and bent on a few degrees angle, so as to vary about oneeighth of an inch from a parallel line to every half inch in length. The plate, as shown-at Fig. .1, is ak flat piece of steel about the whole length of the machine, and vbeveled off at the front edge suitable for turning the fold. On the under side of the plate is fastened three or more fingers exactly the same in every respeet as those fastened in the hollow of Fig. 9,

with the ends reversed, so as to go under those -inthe `hollow and bear alike on each other.

In the hollow of Fig. 9 is attached two springs, which bear against the plate, Fig. l, to raise it when it is drawn back. On the under side of the plate is fastened two or more gages, (shown at Fig. 4,) to regulate the width of the fold. They are secured each by a screw. (Represented at Fig. 5.) In the left end ot` the plate is a short slot, in which a pin isinserted to se' cure a parallel motion of the plate, as shown at letter a. At the opposite end is a handle, Fig. 3, hung by a bolt or screw, Fig. 8. The end over the plate contains a steel pin, which passes through the handle and plate, by means of which on moving the handle to the left the plate is raised by lthe aid of two springs, before described, under the plate, and by reversing the motion ofthe handle the plate is drawn firmly to the metal while the fold is turning, then by again reversing the handle and opening the folder the metal can be removed, thus completing the operation.

What I claim as my invention, and desireto underneath the same, the whole acting together, thereby drawing and holding the plate firmly on the metal while the fold is turning.

2. The gages attached to the plate by which the width of the fold is regulated, substantially as herein described.

DANIEL NEWTON.

In presence of- WALTER I. MERRELL, HENRY WAY. 

